Excerpt: The major breakthrough Friday in free-trade talks between the U.S. and South Korea could pave the way for congressional approval by next spring. U.S. business groups are eager to win passage of the agreement during the first half of the year, since a rival trade pact that South Korea signed with Europe is set to go into effect at the beginning of July. "I would hope that it gets approved by spring," said Chuck Dittrich, vice president for regional trade initiatives at the National Foreign Trade Council, which represents multinational corporations. "What happened today has created some momentum, and I think the business community is firmly behind it to not only sustain but increase that momentum," said Dittrich.http://online.wsj.com/article/BT-CO-20101203-713029.html?mg=com-wsj